Overview
The ZF 5838.300.582 LINE is a precision-engineered hydraulic control line designed for the valve body assembly within ZF powershift transmissions used in heavy construction machinery. This OEM genuine part directs pressurized transmission fluid to actuate clutch packs, enabling smooth gear engagement under high torque loads. As a critical component of the transmission’s hydraulic circuit, the 5838.300.582 LINE ensures consistent oil flow and pressure regulation. When this line becomes clogged or damaged, it directly compromises shift quality and drivetrain reliability. The SKU 5838.300.582 is manufactured to ZF’s original specifications, guaranteeing exact fitment and material durability for demanding off-highway applications.
Symptoms of Failure
- Delayed or harsh gear engagement: A worn or cracked 5838.300.582 LINE causes inconsistent hydraulic pressure, leading to noticeable lag when shifting from neutral to drive or reverse.
- Transmission fluid leaks at the valve body: Degraded sealing surfaces on this line produce visible oil seepage around the transmission housing, often mistaken for a pan gasket failure.
- Erratic clutch slip under load: Insufficient fluid delivery through a restricted line results in momentary power loss during uphill climbs or heavy digging operations.
- Overheating transmission fluid: Restricted flow through the 5838.300.582 LINE forces the pump to work harder, raising operating temperatures beyond normal thresholds.
Technical Specifications
| Part Number | 5838.300.582 |
| OEM Reference | ZF LINE, Hydraulic Control |
| Material | High-tensile steel with corrosion-resistant coating |
| Length | Approx. 320 mm |
| Inner Diameter | 8.5 mm |
| Weight | 0.42 kg |
| Seal Type | O-ring face seal (included) |
Compatibility
This hydraulic line is engineered for ZF WG series powershift transmissions commonly installed in wheel loaders, dozers, and excavators. It is a direct replacement for the following models: WG180, WG200, WG210, and WG250. The 5838.300.582 LINE interfaces with the main control valve and the clutch accumulator circuit. For a complete transmission overhaul, pair this line with the 5838109007 DIFFERENTIAL to restore final drive integrity, and replace the 0750117075 TAPER ROLLER BEARING to eliminate shaft play. The 2095209019 DIFFERENTIAL and 0631329086 SPRING PIN are also frequently replaced during the same service interval to prevent secondary failures.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109007 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports rotating shaft loads |
| 2095209019 | DIFFERENTIAL | Rear axle torque distribution |
| 0631329086 | SPRING PIN | Secures linkage assemblies |
| 5838300817 | THRUST WASHER | Reduces axial friction |
| 5838300682 | DIFFERENTIAL AXLE | Transfers power to wheel hubs |
| 5838300811 | THRUST WASHER | Controls gear end-play |
| 5841302064 | THRUST WASHER | Planetary gear support |
| 5838300137 | OUTER CLUTCH DISK | Steel friction plate |
| 5838300138 | INNER CLUTCH DISK | Friction-lined clutch plate |
